Cybersecurity Engineer

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you!

We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States.

We have an exciting opportunity for a Cybersecurity Engineer t o join the JETSII Contract!

The Cybersecurity Engineer will lead proactive cybersecurity activities focused on protecting spacecraft systems, Flight Software (FSW), and embedded hardware architectures. This role requires a highly motivated cybersecurity professional who can identify, assess, and simulate cyber threats against mission-critical space systems.

Key responsibilities include:

• Lead rigorous security testing, threat modeling, and vulnerability assessments targeting Flight Software (FSW) and embedded spacecraft hardware.

• Conduct security evaluations to identify and mitigate security weaknesses.

• Research advanced spacecraft vulnerabilities and emerging cyber threats affecting spaceflight architectures and embedded systems.

• Execute rigorous, non-disruptive penetration testing and red-teaming campaigns targeting the Space Segment (flight software, RTOS, on-board buses), Link Segment (RF telemetry, CCSDS protocols), and Ground Segment (mission control).

• Conduct deep-dive "bounty hunting" and vulnerability analysis on third-party software, open-source repositories, and embedded microcode used in safety-critical systems.

• Plan and execute interactive Red Team versus Blue Team exercises to validate defensive capabilities and improve cyber resilience.

• Collaborate with software, systems, and integration teams to incorporate cybersecurity best practices throughout the development lifecycle.

• Document findings, provide risk-based recommendations, and support remediation and mitigation activities.

• Perform other duties as assigned.

Requisition Qualifications

​ This position has been posted at multiple levels. Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

• Typically requires a bachelor’s degree or equivalent certification in a related area and a minimum of 5 years of experience in the field or in a related area.

•Bachelor's degree in Engineering, Cybersecurity, or Cyber Operations.• Experience performing security testing on software, firmware, embedded systems, or mission-critical platforms.

• Experience conducting threat modeling and risk assessments for complex systems.

• Experience performing vulnerability assessments on critical software and hardware systems.

• Experience with embedded software penetration testing, red teaming, or vulnerability research applied directly to aerospace or critical infrastructure platforms.

• Demonstrated experience writing custom testing scripts and low-level code (C/C++, Python, Assembly) targeting resource-constrained environments

• Strong analytical and problem-solving skills.

• Excellent verbal and written communication skills, including the ability to clearly communicate technical findings to both technical and non-technical audiences.

• Ability to obtain and maintain a Top Secret security clearance.

Requisition Preferences

• Experience with spacecraft, satellite, aerospace, defense, or other safety-critical systems.

• Experience with Flight Software (FSW) development, testing, or security assessments.

• Knowledge of secure software development practices and DevSecOps methodologies.

• Ability to work effectively in a cross-functional engineering environment and support multiple projects simultaneously.

Compensation:

• Salary starts at $83,700. Final pay will be commensurate with the candidate's experience, skills, and qualifications.

Why Join Our Team?

In addition to exciting career opportunities, we also ave:

• Excellent personal and professional career growth
• 9/80 work schedule (every other Friday off), when applicable
• Onsite cafeteria (breakfast & lunch)
• Much, much more!

For more information on our partnership with NASA at Johnson Space Center (JSC), please visit

• Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position.
• Must be able to complete a U.S. government background investigation.
• Management has the prerogative to select at any level for which the position is advertised.

Essential Functions

Work Environment

Generally, an office environment, but can involve inside or outside work depending on task.

Physical Requirements

Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).

Equipment and Machines

Standard office equipment (PC, telephone, printer, etc.).

Attendance

Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements.

Other Essential Functions

Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

#JETS #JETSII

Compensation Details:

IT2

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Tax-saving options

• Disability and life insurance

• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

09/21/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.